.big{
    width: 100%;
    height: 100vh;
    background-image: url(../../public//login.jpg);
    background-size: cover;
}
.box{
    position: fixed;
    top: 50%;
    left: 70%;
    transform: translate(-50%,-50%);
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
    padding: 30px;
}